Download it. Please report bugs or errors. Honestly, I'm shocked this still works despite tinkering with it again after 2 years. The code is terrible.

Uh, so I don't understand. What does this do exactly?
It checks whether you are wasting EVs. For example, we have Aerodactyl. We give it a Hardy nature, and 252 Speed EVs. We press "Fix". The applet will save 56 EVs. It will tell you to use Jolly, 124 Speed EVs, and 72 SpAtk EVs. This will achieve the same stats as before, except with less EVs. Also, since Aerodactyl doesn't need Special Attack, you really save 72 more EVs from SpAtk. The reason it adds SpAtk EVs is because it makes no assumptions.

Also, this doesn't have to be used as an EV fixer. I use this when battling all the time to get immediate, fast stats, and to get the EVs/Nature I want for Shoddy's Team Builder.

Okay, but I don't know what it looks like!
Fine, chump. Have it your way.